C Hopper wrote:I have been brainstorming how to efficiently make biochar. The TLUD seems rather inefficient as so much fuel is burned to heat the retort.
I have not tried any of this yet as I just put it onto paper yesterday, but here goes.
construct an outdoor rocket mass heater with the following differences:
1. instead of (or perhaps on top of) the big bell (heat riser) that radiates heat, place an old iron woodstove (or any sort of sealable durable metal container) that would function as the retort.
2. There could be a wood gas exhaust line (from the retort) with multiple valves to allow distribution to mulitiple useful ends (internal combustion electrical generator, cookstove, down into the rocket...)
3. The insulating mass would cover the entire apparatus with moveable insulation for the retort door.
4. no long warming bench for the rocket exhaust. Place heat exchanger fins under the retort in the heat riser chamber, to extract as much heat from the exhaust as possible.
I am only imagining how this would work from listening to podcasts and reading articles. But with the technicalities worked out and much experimentation I think that it could be a much more efficient means of producing biochar and usable wood gas for the homestead.
Here are a couple childlike drawings that I made during an HR meeting at work, lol.
Xisca Nicolas wrote: Why a homeowners association (I do not know what it is exactly...) prevents you from doing it?
Tiberiu Doman wrote:
My only question would be how long do you intend to live there? Three feet above sea level might start to get problems (sea water in the aquifers) very soon.
David Chapman wrote:
If you'd ever like to get together and talk permaculture, lunch is on me. Just PM me.